David Bryan, keyboardist for Bon Jovi, says he tested positive for coronavirus

(CNN) — David Bryan, a founding member of Bon Jovi, announced Sunday on Instagram that he tested positive for coronavirus.

"I've been sick for a week and feeling better each day," the 58-year-old keyboardist wrote. "Please don't be afraid!!! It's the flu not the plague."

Bon Jovi band members (Instagram)

Bryan said he has "been quarantined for a week and will for another week. And when I feel better I'll get tested again to make sure I'm free of this nasty virus. Please help out each other. This will be over soon... with the help of every American !!"

Coronavirus: What you need to know

How is coronavirus transmitted?

The human coronavirus is only spread from someone infected with COVID-19 to another. This occurs through close contact with an infected person through contaminated droplets spread by coughing or sneezing, or by contact with contaminated hands or surfaces.

Coronavirus patients may experience flu like symptoms such as a fever, cough, runny nose, or shortness of breath. In more severe cases, infection can cause pneumonia with severe acute respiratory distress.

What is the difference between COVID-19 and the flu?

The symptoms of COVID-19 and the flu are very similar, as they both can cause fever and respiratory issues.

Both infections are also transmitted the same way, via coughing or sneezing, or by contact with hands, surfaces or objects contaminated with the virus.

The speed of transmission and the severity of the infection are the key differences between COVID-19 and the flu.

The time from infection to the appearance of symptoms is typically shorter with the flu. However, there are higher proportions of severe and critical COVID-19 infections.